Machine for inserting end closures in can bodies



J. E. ANNEN.

MACHINE FOR INSERTING END CLOSURES [N CAN BODIES. APPLICATION FILED 1uLY.15.1920.

l mg gm Patented m... M, W22.

3 SHEETS-SHEET I.

x 1'. E. ANNEN.

\ MACHINE FOR INSERTING END CLOSURES IN CAN BODIES.

APPLICATION FILED JULY 15,1920. L a 1? w! 5111 L Pammntedl 0%. N,

3 SHEETS-SHEET 2.

J. E. ANNEN.

MACHINE FOR INSERTING END CLOSURES IN CAN BODIES.

APPLICATION FILED JULY l5,1920.

Patented Oct. Q1 1922.

3 SHEETSSHEET 3.

Ill

atet lfil l t If I JII I III JES EDWARD ANNEN, 0F MILWAUKEE,

CAN tlt'lllllFY, 0F MILWAUKEE, WISC WISCONSIN, ASSIGNOE 'l D NATIONAL PAPER ONEtIN, A COE-PQEATIUN OF DELAWARE.

ATAGTEE FUR INSEETING END GLOSURES IN CAN EODTEA Application filed July it,

To all whom it may concern:

Be it @own that l, James E. ANNEN residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented a new and useful Improvement in Machines for lnserting End Closures in Can Bodies, of which the following is a full, clear, and exact description, reference being bad to the accompanying drawings, forming part of this specification.

The present invention relates to a machine for inserting end closures in can bodies, and more especially for inserting end closures in can bodies in the manufacture of the cans of the type shown in the Hulbert United States Patents, Nos. 1,319,081; 1,319,082 and 1,319,083, of October 21, 1919.

In making this type of can, end closures are inserted in the ends of the open-ended can bodies or shells, and the end closures are united to the can body by a rolled seam. For certain purposes, it is desirable that the two end closures be inserted in the can before they are united thereto by the seam. lit is found that if an attempt is made to insert both end closures simultaneously, the air in the can is sufficiently compressed so as to push out one or both closures. in the machine of the present invention, the can bodies are carried by a feeder to two operating stations. At the first operating station, one. of the end closures is inserted and then the can is moved to the second operating station where the second end closure is inserted.

After the end closures are inserted, they are united with the can body by a rolled sea-m substantially as shown in the flulbert patents, above referred to.

" In the drawings, Figure 1 is a. side elevation of a machine embodying the invention; Figure 2 is a plan view partly in section showing the driving shafts and gears for the plungers.

Figure 3 is a front view partly in section of the machine;

Figure 4 is a horizontal section showing 1920. I Aerial lt'o. 396,509.

one of the plungers, its stripper and operatmcam; and

igures 5, 6 and through one of the plunger and stripper positions.

Referring to the illustrated embodiment of the invention, the machine comprises a feeder wheel 2, which carries the open-ended cylindrical shells or can bodies 3 to the two operating stations 4 and 5. The open-ended can bodies are fed to the wheel through a chute 6, and after the ends are inserted in the can bodies, they are discharged'on to a worktable or conveyor 7. The feeder wheel 2 has recesses 8, in which the can. bodies are received and carried to the operating stations. A guard or strap 9 fits over one side of the Wheel to hold the cans in position in the recesses 8 of the whee The feeder wheel 2 is moved forward intermittently bymeans of a Geneva movement 10, indicated in dotted lines in Figure 1.

At the first operating station, the closure is inserted in the left hand end of the can, as viewed in Figure 3, and in operating statlon 5, the closure is inserted in the right hand end of the can as viewed in Figure 3. The mechanism for inserting the end closures is the same at both stations t and-5. I

The closure-inserting mechanism comprises a cam-actuated plunger 11, which is operated to insert the closure inthe open end of the can body. The structure of the plunger and associated mechanisms is shown more particularly in Figures 3, 4, 5, 6 and 7.

Above the plunger 11 is a chute 12, down which flat disks are fed one by one to form the end closures. The disks are held in a hopper 13, which is provided with a picker 14, which takes 0d the bottom disk from the pile of disks 1-5 and feeds it down the chute 12 into position in front of the plunger 11. The picker is operated through an eccentric 16.

The plunger 11 is operated by means of a 7 are vertical sections mechanism indifferent plungers showing the cam 17 having two paths 18 and 19, the path 18 operating the plunger proper, and the path 19 operating the stripper. The plunger 11 is operated by the cam 17 and engages an end closure 21 which has been fed down the chute 12. The plunger carries the flat disk through a circular die 22, which bends the edge of the disk into a flange, as shown in Figure 6. The continued movement of the plunger carries this flanged disk into the can body, as shown in Figure 3. After the flanged disk is inserted in the can body, the plunger 11 retreats, while the stripper '20 is held stationary to hold the end closure, as shown in Figure 7. Thereafter, the stripper 20 is rapidly retracted by its cam 19 to the position shown in Figure 5.

In Figures 3, 5, 6 and 7, the plunger for operating station 5 is shown, the plunger mechanism for operating station 4 being a duplicate. An abutment or stop 25 is provided opposite the plunger. of operating station 4 to hold the can body in position, and a similar stop 26 is provlded opposite the plunger of station 5 which serves to hold the can body in position and also serves to hold the previously inserted end closure in place, so that there is no danger of its being displaced by any compression of the air in the can. It will be noted that the second end closure is inserted subsequently to the first, so that the air compression is reduced to not more than one-half of what would take place if both the closures were inserted at the same time. It is found that with the machine herein shown, no difiiculty is encountered with blowing out of the end closures by air compressed in the cylinder.

' The plungers are operated in timed relation to the movement of the feeder wheel, by means of the shafts and gears shown in Figure 2. During the feeding movement of the wheel 2, the plunger and stripper-operating rolls occupy theidle portions of the cam grooves 18 and 19, near the camcarrying shaft, so that the plungers are held stationary and retracted during the feeding movement of the wheel. As soon, however, as the can bodies are brought to the operating station and the feed wheel 20 is stopped, the plungers are broughtinto operation to insert the end closures. After the end closures are inserted and the plungers and'strip ers withdrawn, the feed wheel 2 is moved orward another step.

While the preferred embodiment of the invention has been specifically illustrated and described, it is to be understood that the invention is not limited to the structural details of the illustrated embodiment, but may be embodied in other machines within the scope of the appended claims.

I claim:

1. A machine for inserting end closures in can bodies, comprising means for inserting the closure into one end of the body, and means acting subsequently for inserting the closure into the other end in the opposite direction, substantially as described.

2. A machine for inserting end closures in can bodies, comprising means for in serting the closure in one end of the body, means acting subsequently for inserting the closure in the other end, and means for re taining the first closure in place while the second closure is being inserted, substantially as described.

3. A machine for inserting end closures in can bodies, comprising means for inserting the closure into one end of the body at one operating station, means for transferring the can body to a second operating station, and means for there inserting in an opposite direction the closure into the other end, substantially as described.

4. A machine for inserting end closures in can bodies, comprising an intermittent feeder for positioning the can bodies at different operating stations, means at one station for looselyinserting a closure in one end of the body, means at a subsequent station for loosely inserting a closure in the other end, and means for retaining the first closure in place while the second closure is being inserted, substantially as described.

5. A machine for inserting end closures in can bodies, com' rising an intermittently operated feeder w eel having recesses for engaging and carrying the can bodies to different operating stations, a plunger at one station for inserting a closure in one end of the can body, and a plunger at a subsequent station operating in the op posite direction for inserting a closure in the other end of the can body, substantially as described. I

6. A machine for inserting end closures in can bodies, comprising a plunger for inserting a closure in one end of the can body, a stripper for holding the closure during the withdrawal of the plunger, and a second plunger operating subsequently to the first plunger for insertin a closure in the other end of the can be y, and a stripper for holding the other closure in position during the withdrawal of the plunger, substantially as described.

7. A machine for inserting end closures in can bodies, comprising a plunger for inserting a closure in one end of the can body, a stripper for holding the closure during the withdrawal of the plun r, a second plunger operating subsequent y to the first plunger for inserting a closure in the other end of the can body, a @ripper for holding the other closure in closed position during the withdrawal of the plunger, and means for holding the first inserted closure inseam mm in position during theinsertion of the other ing station comprising supporting means 10 closure, substantially as described. for holding the can body and first inserted 8. A machine for inserting end closures closure in place, and a p unger operating in in can bodies, comprising an operating stathe opposite direction for loosely inserting 5 time having a support for the can body and a closure in the opposite end of the can a plunger for loosely inserting an end body, substantially as described. 15 closure therein, means for transferring the In testimony whereof, I have hereunto can body with one end closure inserted to a set my hand.

second operating station, a second operat- JAWS EDWARD ANNEN. 

